title: Femtosecond photon echo spectroscopy of semiconducting single-walled carbon nanotubes.
abstract: Three-pulse photon echo peak shift measurements were performed on semiconducting single-walled carbon nanotubes embedded in polymer matrix at room temperature. Simultaneous modeling of the peak shift data in the limit of zero-intensity and the linear absorption spectrum enable us to extract an intrinsic homogeneous line width of 178 cm(-1), an inhomogeneous width of 698 cm(-1), and a Huang-Rhys factor of 0.04 for the radial breathing mode vibration. The peak shift data when combined with two-pulse photon echo and pump-probe measurements allows us to determine a pure exciton dephasing time scale of 78 fs at room temperature.
authors.affiliation: Department of Chemistry, University of California, Berkeley, California 94720-1460, USA.
authors.forename: Matthew W
authors.initials: MW
authors.lastname: Graham
authors.forename: Ying-Zhong
authors.initials: YZ
authors.lastname: Ma
authors.forename: Graham R
authors.initials: GR
authors.lastname: Fleming